/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.netbeans.modules.java.hints.spiimpl;

import org.junit.Assert;

/**
 *
 * @author Jan Lahoda
 */
public class TestUtilities {

    private TestUtilities() {
    }

    public static String detectOffsets(String source, int[] positionOrSpan) {
        return detectOffsets(source, positionOrSpan, "\\|");
    }

    public static String detectOffsets(String source, int[] positionOrSpan, String delimiter) {
        //for now, the position/span delimiter is '|', without possibility of escaping:
        String[] split = source.split(delimiter);
        
        Assert.assertTrue("incorrect number of position markers (|)", positionOrSpan.length == split.length - 1);
        
        StringBuilder sb = new StringBuilder();
        int index = 0;
        int offset = 0;
        
        for (String s : split) {
            sb.append(s);
            if (index < positionOrSpan.length)
                positionOrSpan[index++] = (offset += s.length());
        }
        
        return sb.toString();
    }

}
